Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12405587 | Controller | Yuta Yamada | 2025-09-02 |
| 11489880 | Controller to determine a transmission right and control a timing of communication between nodes | — | 2022-11-01 |
| 10886434 | White LED lamp, backlight, light emitting device, display device and illumination device | Tsutomu Ishii, Hajime Takeuchi, Yasumasa Ooya, Yumi Kanno, Masaki Toyoshima +2 more | 2021-01-05 |
| 10025750 | Transmission device, controller, and system comprising transmission device and controller | — | 2018-07-17 |
| 9660149 | Phosphor and LED light emitting device using the same | Tsutomu Ishii, Yoshitaka Funayama, Yumi Ito, Yasumasa Ooya, Ryo Sakai +2 more | 2017-05-23 |
| 9228718 | LED light bulb | Yasumasa Ooya, Masahiko Yamakawa, Yasuhiro Shirakawa | 2016-01-05 |
| 9169436 | Phosphor and LED light emitting device using the same | Tsutomu Ishii, Yoshitaka Funayama, Yumi Ito, Yasumasa Ooya, Ryo Sakai +2 more | 2015-10-27 |
| 9039218 | White LED lamp, backlight, light emitting device, display device and illumination device | Tsutomu Ishii, Hajime Takeuchi, Yasumasa Ooya, Yumi Ito, Masaki Toyoshima +2 more | 2015-05-26 |
| 8955996 | LED light bulb | Yasumasa Ooya, Masahiko Yamakawa, Yasuhiro Shirakawa | 2015-02-17 |
| 8933475 | Light emitting device | Yasumasa Ooya, Yoshitaka Funayama, Daichi USUI | 2015-01-13 |
| 8796915 | LED light bulb | Yasumasa Ooya, Masahiko Yamakawa, Yasuhiro Shirakawa | 2014-08-05 |
| 8723412 | White lighting device | Yumi Ito, Masahiko Yamakawa | 2014-05-13 |
| 8487330 | Phosphor and LED light-emitting device using the same | Tsutomu Ishii, Yoshitaka Funayama, Yumi Ito, Yasumasa Ooya, Ryo Sakai +2 more | 2013-07-16 |
| 8471283 | White LED lamp, backlight, light emitting device, display device and illumination device | Tsutomu Ishii, Hajime Takeuchi, Yasumasa Ooya, Yumi Ito, Masaki Toyoshima +2 more | 2013-06-25 |
| 8288937 | White LED, and backlight and liquid crystal display device using the same | Tsutomu Ishii, Yasumasa Ooya, Ryo Sakai, Hajime Takeuchi, Yumi Ito +1 more | 2012-10-16 |
| 7920043 | Planar magnetic device and power supply IC package using same | Tetsuo Inoue, Akira Sato | 2011-04-05 |
| 7821371 | Flat magnetic element and power IC package using the same | Tetsuo Inoue, Akira Sato | 2010-10-26 |
| D593515 | Light-emitting diode | — | 2009-06-02 |
| 6869700 | Soft magnetic alloy fiber, manufacturing method for soft magnetic alloy fiber, and information recording article using soft magnetic alloy fiber | Takao Sawa, Hisashi Takahashi, Teruo Murakami, Masao Obama | 2005-03-22 |
| 6731111 | Validity determination using magnetic ink having magnetic powders with different Curie temperatures | Takao Sawa, Teruo Murakami, Tadahiko Kobayashi, Hisashi Takahashi, Masao Obama | 2004-05-04 |
| 6610425 | Soft magnetic alloy fiber, manufacturing method for soft magnetic alloy fiber, and information recording article using soft magnetic alloy fiber | Takao Sawa, Hisashi Takahashi, Teruo Murakami, Masao Obama | 2003-08-26 |
| 6546968 | Bond magnet and manufacturing method thereof, and actuator therewith | Fumiyuki Kawashima, Takao Sawa, Shinya Sakurada, Tomohisa Arai | 2003-04-15 |
| 6545466 | MAGNETIC POWDER FOR VALIDITY DETERMINING INK, MANUFACTURING METHOD FOR MAGNETIC POWDER FOR VALIDITY DETERMINING INK, MAGNETIC INK FOR VALIDITY DETERMINATION, PRINTING MEMBER FOR VALIDITY DETERMINATION, DETECTING DEVICE FOR PRINTING MEMBER FOR VALIDITY DETERMINATION, AND VALIDITY DETERMINATION DEVICE | Takao Sawa, Teruo Murakami, Tadahiko Kobayashi, Hisashi Takahashi, Masao Obama | 2003-04-08 |
| 6317020 | Bond magnet and manufacturing method thereof, and actuator therewith | Fumiyuki Kawashima, Takao Sawa, Shinya Sakurada, Tomohisa Arai | 2001-11-13 |
| 4651462 | Fastening tool of the fishing line sinkers | — | 1987-03-24 |